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  "path": "/alexgetmancom/claude-fable-is-back-472j",
  "publishedAt": "2026-07-01T13:45:08.000Z",
  "site": "https://dev.to",
  "tags": [
    "devops",
    "ai",
    "technology"
  ],
  "textContent": "Claude Fable is back!\n\nAnthropic has lifted restrictions on Claude Fable 5 and Mythos 5 after a decision by the US government.\n\nFable will be available to Claude users again starting today.\n\nUntil July 7, the model is included in weekly limits. After that, access will move to API.\n\nThe restriction started after an Amazon report: researchers found a way to bypass Fable’s safeguards in cybersecurity tasks.\n\nAnthropic says the bypass did not unlock Mythos-level capabilities. The company has already added a new safety classifier that blocks this method in more than 99% of cases.\n\nAnthropic is also preparing a common standard for evaluating AI jailbreaks.",
  "title": "Claude Fable is back!"
}